Spring-mounting.



T. W. DUNN.

SPRING MOUNTING.

APPLICATION FILED DEC. 28, 1915.

1,203,318. Patented 001;. 31, 1916.

2 SHEETS-SHEET l- T. W DUNN. SPRING MOUNTING.

APPLlCATION FILED DEC. 28, 1915.

1 .2033 18. Patented 00$. 31, 2 SHEETSSH EET 2.

7%077705 Z1]. ;D an m THOMAS WILSON DUNN, OF SHEFFIELD, PENNSYLVANIA.

SPRING-MOUN TIN G.

Specification of Letters Patent.

Patented Oct. 31, 1916.

Application filed December 28, 1915. Serial No. 68,991.

To all whom it may concern:

Be it known that I, THOMAS WILsoN DUNN, a citizen of the United States, residing at Sheffield, in the county of Warren and State of Pennsylvania, have invented certain new and useful Improvements in Spring- Mountings, of which the following is a specification.

My invention relates to improvements in spring mountings, of the type shown and described in United States Letters Patent No. 1,041,255, granted to me under date of October 15, 1912.

An important object of the invention is to simplify the construction of t he sprlng mounting, and increase the reslhency and efficiency.

A further object of the invention is to pro vide a spring mounting of the above men tioned character, so constructed that shocks and jars transmitted to one end of the vehicle will not be received by the other end.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same, Figure 1 is a side elevation of a spring mounting embodying the invention, Fig. 2 is a plan view of the same, Fig. 3 is a longitudinal sectional View, taken on line 33 of Fig. 2, Fig. 4 is a transverse sectional view taken on line H of Fig. 2, and, Fig. 5 is a similar view taken on line 55 of Fig. 2.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 10 designates a rear axle casing of the automobile, carrying rear wheels 11, while the numeral 12 designates a front axle, having front wheels 13 connected therewith in the usua manner.

The numeral 14 designates the chassis or frame of the automobile, embodying longitudinal beams 15, rigidly connected by rear and front transverse beams 16 and 17, as shown.

Disposed upon the axle casing 10, are double bow or leaf-springs 18, extending longitudinally of the frame 14, and comprising upper and lower leaf-springs l9 and 20, pivotally connected at 21. The lower leafsprings 20 are connected with the axle-casing 10 by .i 153118 of clamps 22 or the like.

The numeral 23 designates double bow or leaf-springs, comprising upper and lower leaf-springs 24: and 25, pivotally connected at 26. The lower leaf-springs 25 are rigidly connected with the front axle 12, by means of clamps 27 or the like, as shown.

Arranged upon opposite sides of the chassis or frame 1% are rear and forward approximately ho-rizontal preferably rigid suspension rods or bars 27 and 28. The rear ends of the suspension rods 27 are pivotally connected, as shown at 29, to swing in a vertical plane, with the upper leaf springs 19.

-The forward ends of the forward suspension rods 28 are pivotally connected, as shown at 30, to swing in a vertical plane, with the upper leaf springs 24. The inner ends of the suspension rods 27 and 28 are provided with apertured heads, receiving pins or bolts 31, which are rigidly attached to the beams 15 of the frame it, at points substantially equidistantly spaced from the ends of the frame 14.

As more clearly shown in Fig. 4, the numeral 32 designates a forward transverse end-support or bolster, having ends 33 ex tending upwardly and bent about or secured to the forward suspension rods 28, near their forward. ends, but spaced inwardly for a substantial distance from the center of the springs 23. A forward transverse supporting bow or leaf-spring 34 is rigidly secured to the bar 32, by means of a clamp 35. The ends of this spring 3 1 are pivotally con of the beams 15 of the frame or chassis 14.. As more clearly shown in Fig. 5, a transverse supporting member, curved bar, or bolster 37 is rigidly connected with the rear ends of the beams 15 or the chassis or frame, and carries an upstanding bracket or clamp 38. This bracket or clamp receives and holds a transverse rear bow or leaf spring 39, the ends of which are pivotally mounted upon the rear portions of the suspension rods 27, as shown at 40, at a point arranged inwardly of and spaced a substantial distance from the pivots 30 or the center of the springs 18, as shown.

Arranged beneath the frame 14:, are rear and forward diagonal brace rods 41, the inner ends of which are pivotally connected, to swing in a vertical plane, with the frame 14, adjacent the pivots 31, as shown at 42. The outer ends of these brace rods are pivotally connected with the axle casing 10 and "the rods Q'Tand 28"at points spaced a subthe spirit of the subjoined claims.

stantial distance inwardly from the center of the springs 18 and 23, the'frame or chassis 44: is given the cantaliver advantage,

when the machine encounters obstacles in the roadbed, Without the usual disadvantages of the cantaliver principles.

It is to be -understood that the form of my invention herewith shown and 'described is to be taken as a preferred eX- ampleof the same, and that various changes in the shape, size, and arrangem'entof parts may'beresorted to without departmg from the invention or the scope of 'Having thus described the invention, 1 claim:

1. The combination with a vehicle frame, of wheel carrying axles arranged near the ends thereof, springs secured to-theaxles, suspension rods having their outer ends pivotally connected'wit-h the upper portions of the springs and their inner ends pivotally connected with the frame, diagonal brace rods having their outer ends pivotally con- 7 nected with the lowerportions of the springs and their inner ends pivotally connected With the frame, and transverse springs connected 'With the ends of the frame and mounted upon the outer end portionsof the suspension rods.

2. The combination with a vehicle frame, of wheel carrying axles arranged nearzthe ends thereof, double bow springs mounted upon the axles and extending longitudinally ofthe" frame, approximately horizontal suspension rodshavmg'then' outer ends p1votally connected with the upper membersof the double bow springs at thelrcenters and the inner ends of the suspension'rods being I pivotally connected *with the frame, diagonal. "brace rods having their outer ends pivotally connected with the loWer' members-of the double bow springs and'their inner ends pivotally connected with the frame, and

transverse end springsconne'cted with the "end portions of the frame to support it and pivotally mounted upon the end portions'of the suspension rods at points arranged inwardly of and spaced 1 a substantial distance from the centersof the double bow springs.

'In testimony whereof I affix my signature in presence of two witnesses.

THOMAS WVILSON DUNN.

WV-itnesses LAVEM WRIGHT,

A. PINNEY.

Copies of this patent may be obtained for five eents eaehyby addressing the Commissioner 'of' Patents,

' -Washington, D. C. 

